131345650 has 24 divisors (see below), whose sum is σ = 249988464. Its totient is φ = 51315600.

The previous prime is 131345639. The next prime is 131345653. The reversal of 131345650 is 56543131.

It is not an unprimeable number, because it can be changed into a prime (131345653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28396 + ... + 32695.

It is an arithmetic number, because the mean of its divisors is an integer number (10416186).

Almost surely, 2^131345650 is an apocalyptic number.

131345650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131345650 is a deficient number, since it is larger than the sum of its proper divisors (118642814).

131345650 is a wasteful number, since it uses less digits than its factorization.

131345650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61146 (or 61141 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 131345650 is about 11460.6129853512. The cubic root of 131345650 is about 508.3216002547.

Adding to 131345650 its reverse (56543131), we get a palindrome (187888781).

The spelling of 131345650 in words is "one hundred thirty-one million, three hundred forty-five thousand, six hundred fifty".